Cube shelf



FIG. 1 is a perspective view of a cube shelf showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side view thereof, the opposite side being a mirrorimage of the side shown;

FIG. 4 is a perspective view of a second embodiment thereof; and,

FIG. 5 is a perspective view of a third embodiment thereof.

The ornamental design for a cube shelf, as shown and described.